<template>
  <div class="app-container">
 
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch">
      <el-form-item  prop="coursewareName" >
        <el-input
          v-model="queryParams.coursewareName"
          placeholder="多个内容,空格分隔"
          clearable
          style="width: 240px"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      
     
      <el-form-item>
        <el-button type="primary" icon="el-icon-search"   size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>       
      </el-form-item>
      
    </el-form>
     <el-row :gutter="10" class="mb8">
        <el-col :span="1.5">
          <el-button
            type="primary"
            plain
            icon="el-icon-plus" 
            size="mini"
            @click="handleAdd"
          v-hasPermi="['ex:courseware:add']"
         >新增</el-button>
        </el-col>
        
        <el-col :span="1.5">
          <el-button  
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['ex:courseware:edit']"
        >编辑</el-button>
        </el-col>
        <el-col :span="1.5">
          <el-button
              type="danger"
              plain
              icon="el-icon-delete"
              size="mini"
              :disabled="multiple"
              @click="handleDelete"
              v-hasPermi="['ex:courseware:remove']"
          >批量删除</el-button>
        </el-col>
        <el-col :span="1.5">
          <el-button
         
            type="info"
              plain
              icon="el-icon-upload2"
              size="mini"
              @click="handleImport"
              v-hasPermi="['ex:courseware:import']"
            >导入</el-button>

        </el-col>
         <el-col :span="1.5">
            <el-button
            type="warning"
              plain
              icon="el-icon-download"
            
              size="mini"
              @click="handleExport"
              v-hasPermi="['ex:courseware:export']"
            >导出</el-button>
         </el-col>
          <right-toolbar  :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
     </el-row>

        
         
         

       

         
             
              
   
 
    <el-table v-loading="loading" :data="dangerList" @selection-change="handleSelectionChange"  @cell-click="cellHandleclick">
     
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="课件名称" prop="coursewareName" width="120" />
      <!--  show-overflow-tooltip 当内容过长被隐藏时显示 tooltip-->
      <el-table-column label="附件" width="300" >
         <template slot="label">
          <i class="el-icon-upload el-icon--right"></i>
          文件上传
        </template>
        <!--ref 给上传文件绑定一个ref必要时好清空上传文件数组
            action 上传地址
            on change 上传文件发生改变时触发change事件
            show file list是否显示上传信息列表
            auto upload 自动上传文件
            -->
        <el-upload
          class="upload-demo"
          ref="upload"
          action="#"
          :on-change="uploadSuccess"
          :show-file-list="true"
          :auto-upload="false"
          :file-list="fileList">
          <el-button slot="trigger" size="small" type="primary">点击上传</el-button>
        </el-upload>
        
      </el-table-column>
           
  
      <el-table-column label="编辑时间" align="center" prop="updateTime?updateTime:createTime" width="180">
        <template slot-scope="scope">
         
          <span v-if="scope.row.updateTime">{{ parseTime(scope.row.updateTime) }}</span>
          <span v-else>{{ parseTime(scope.row.createTime) }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
           <template slot-scope="scope" >
              <el-button
                size="mini"
                type="text"
                icon="el-icon-edit"
                @click="handleUpdate(scope.row)"
                v-hasPermi="['ex:courseware:edit']"
              >修改</el-button>
              <el-button
                size="mini"
                type="text"
                icon="el-icon-delete"
                @click="handleDelete(scope.row)"
                v-hasPermi="['ex:courseware:remove']"
              >删除</el-button>
           </template>
      </el-table-column>
    </el-table>

 
              
           <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />
        
       
    

    <!-- 添加或修改角色配置对话框 
      是否显示 Dialog，支持 .sync 修饰符 true 显示  false 隐藏
    append-to-body   Dialog 自身是否插入至 body 元素上。嵌套的 Dialog 必须指定该属性并赋值为 true
     -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="100px">
        <el-form-item label="课件名称" prop="coursewareName">
          <el-input v-model="form.coursewareName" placeholder="请输入课件名称" />
        </el-form-item>
         <el-form-item label="附件" prop="coursewareEnclosure">
                 <template slot="label">
                  <i class="el-icon-upload el-icon--right"></i>
                  文件上传
                </template>
                <!--ref 给上传文件绑定一个ref必要时好清空上传文件数组
                    action 上传地址
                    on change 上传文件发生改变时触发change事件
                    show file list是否显示上传信息列表
                    auto upload 自动上传文件
                    -->
                <el-upload
                  class="upload-demo"
                  ref="upload"
                  action="#"
                  :on-change="uploadSuccess"
                  :show-file-list="true"
                  :auto-upload="false"
                  :file-list="fileList">
                  <el-button slot="trigger" size="small" type="primary">点击上传</el-button>
                </el-upload>
        </el-form-item>
        
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>

   <!-- 危险信息源导入对话框 -->
    <el-dialog :title="upload.title" :visible.sync="upload.open" width="400px" append-to-body>
      <el-upload
        ref="upload"
        :limit="1"
        accept=".xlsx, .xls"
        :headers="upload.headers"
        :action="upload.url + '?updateSupport=' + upload.updateSupport"
        :disabled="upload.isUploading"
        :on-progress="handleFileUploadProgress"
        :on-success="handleFileSuccess"
        :auto-upload="false"
        drag
      >
        <i class="el-icon-upload"></i>
        <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
        <div class="el-upload__tip text-center" slot="tip">
          <div class="el-upload__tip" slot="tip">
            <el-checkbox v-model="upload.updateSupport" /> 是否更新已经存在的用户数据
          </div>
          <span>仅允许导入xls、xlsx格式文件。</span>
          <el-link type="primary" :underline="false" style="font-size:12px;vertical-align: baseline;" @click="importTemplate">下载模板</el-link>
        </div>
      </el-upload>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitFileForm">确 定</el-button>
        <el-button @click="upload.open = false">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {uploadFile,addUri, listCourseWare, getCourseWare, delCourseWare, addCourseWare, updateCourseWare } from "@/api/system/courseware";
import { getToken } from "@/utils/auth";



export default {
  name: "courseWare",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids1: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 角色表格数据
      dangerList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 是否显示弹出层（数据权限）
      openDataScope: false,
      menuExpand: false,
      menuNodeAll: false,
      deptExpand: true,
      deptNodeAll: false,
      // 日期范围
      dateRange: [],
         fileList: [],
      id:undefined,
       // 危险信息源导入参数
      upload: {
        // 是否显示弹出层（用户导入）
        open: false,
        // 弹出层标题（用户导入）
        title: "",
        // 是否禁用上传
        isUploading: false,
        // 是否更新已经存在的用户数据
        updateSupport: 0,
        // 设置上传的请求头部
        headers: { Authorization: "Bearer " + getToken() },
        // 上传的地址
        url: process.env.VUE_APP_BASE_API + "/scyf/courseware/importData"
      },
     
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        coursewareName: undefined,
         coursewareEnclosure: undefined,
          
       
      },
      // 表单参数
      form: {},
      defaultProps: {
        children: "children",
        label: "label"
      },
      // 表单校验
      rules: {
       coursewareName: [
          { required: true, message: "课件名称不能为空", trigger: "blur" }
        ]
       
       
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
     uploadSuccess(item){
      let formData = new FormData()
      let file = item.raw
      formData.append('file',file)
      uploadFile(formData).then(ret=>{
        this.fileList[0] = ret.data;
        console.info("id:"+this.id)
        addUri(this.id,ret.data.url).then(()=>{
          this.id = undefined;
        });
        });
    },
    /** 查询角色列表 */
    getList() {
      //加载开启
      this.loading = true;
      listCourseWare(this.addDateRange(this.queryParams, this.dateRange)).then(response => {
          this.dangerList = response.rows;
          this.total = response.total;
          this.loading = false;
        }
      );
    },
   
   
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
   
    // 表单重置
    reset() {
      
    
      this.form = {
        dangerIds: undefined,
       coursewareName : undefined,
        coursewareEnclosure: undefined,
        
        remark: undefined
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.dateRange = [];
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据  当选中的是删除和修改的按钮才能变成可选
    handleSelectionChange(selection) {
      this.ids1 = selection.map(item => item.id)
      this.single = selection.length!=1
      this.multiple = !selection.length
    },
    cellHandleclick(row,column){
      if (column.label === '附件' ){
        this.id = row.id
      }
    },
   
   
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加测试";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id1 = row.id || this.ids1
    
      getCourseWare(id1).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改测试";
      });
    },
 
    /** 提交按钮 */
    submitForm: function() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != undefined) {
            updateCourseWare(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addCourseWare(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
     /** 导出按钮操作 */
    handleExport() {
      this.download('scyf/courseware/export', {
        ...this.queryParams
      }, `courseware_${new Date().getTime()}.xlsx`)
    },
    /** 导入按钮操作 */
    handleImport() {
      this.upload.title = "导入";
      this.upload.open = true;
    },
     /** 下载模板操作 */
    importTemplate() {
      this.download('scyf/courseware/importTemplate', {
      }, `courseware_template_${new Date().getTime()}.xlsx`)
    },
    // 文件上传中处理
    handleFileUploadProgress(event, file, fileList) {
      this.upload.isUploading = true;
    },
    // 文件上传成功处理
    handleFileSuccess(response, file, fileList) {
      this.upload.open = false;
      this.upload.isUploading = false;
      this.$refs.upload.clearFiles();
      this.$alert("<div style='overflow: auto;overflow-x: hidden;max-height: 70vh;padding: 10px 20px 0;'>" + response.msg + "</div>", "导入结果", { dangerouslyUseHTMLString: true });
      this.getList();
    },
    // 提交上传文件
    submitFileForm() {
      this.$refs.upload.submit();
    }
  


 
    ,
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids1;
      this.$modal.confirm('是否确认删除角色编号为"' + ids + '"的数据项？').then(function() {
        return delCourseWare(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
  
  } 
};
</script>